2. Taparia 840 Screw Driver Set with Neon Bulb(Click Link to Check Price on Amazon)Editor’s Rating : 9.3 out of 10The blade is differentially hardened & tempered to resist wear, bending and meet high torque requirement.Hardness on tip: 55 to 58 HRC. Other makes offer much less hardness on tip. Higher the hardness higher is the wear resistance.